feat: add Prome spanish translation

[Bronya-Rand]

Since someone added Traditional Chinese translations to Prome for ST, might as well do the same for Spanish.

Checklist:

• I have read the Contributing guidelines.

[Wolfsblvt]

I think it would be better if you keep the same indentation style on the files than they had before - which means 4 spaces for translation files.

Otherwise it's really hard to see the actual changes.

[Bronya-Rand]

Apologies. Due to working on PygSite with Biome, my formatter (Biome) decided to basically format all the contents of the translation file to be tabs than spaces.

[Wolfsblvt]

I don't understand Spanish, but I trust your translation skills.

Good now.